Simpson PS4240H 2.2Hose Connections cont, 2.3Before Starting Machine, 2.0Operating Instructions

2.0Operating Instructions

2.2Hose Connections (cont.)

1.Connect discharge hose to machine outlet. (Fig. 2.2-1)

2.If optional low pressure downstream, in-line chemical injector is to be used (i.e. a Simpson SC 242 or

252 Series chemical injector) connect the injector at this time (Fig. 2.2-2). For instructions on connections and use, see in-line chemical injector operating instructions

3.Connect gunvalve to discharge hose with quick coupler (Fig. 2.2-3). DO NOT INSTALL CLEANING NOZZLE AT THIS TIME. Quick coupler sleeves must be pushed into locked position to prevent acciden- tal uncoupling (Fig. 2.2-5).

4.Check inlet water filter for blockage then connect water supply hose to machine. Use a 3/4" I.D. or larger hose with standard 3/4" garden hose fittings. (Fig. 2.2-4)

Incoming water supply must deliver gallons per minute greater than machine capacity.

If questionable, check supply at machine. If supply is insufficient, do not operate from this outlet. For residental use, the outlet closest to the meter tap will usually deliver the highest gallons per minute output. DO NOT connect to shallow wells used for lawn sprinkling. Connect only to clean city water supply or deep domestic well.

2.3Before Starting Machine

DO NOT OPERATE GASOLINE AND DIESEL ENGINES IN ENCLOSED AREAS! OPERATE IN WELL VENTILATED AREAS ONLY!

FIGURE 2.3 - GUNVALVE, EXTENSION, & NOZZLE

1.Locate machine on a level plane.

2.Turn on water supply. There should be no nozzle in the extension at this point.

3.Pull gunvalve trigger, allowing air in system to escape.

4.When water flows in a full steady stream, release gunvalve trigger. (Fig. 2.3)

2.4Starting Gasoline / Diesel Engine Machines

1.Check position of fuel valve, and if closed, open valve. For more detailed information on starting the machine’s engine, see engine instruction manual.

2.Choke: Close choke on carburetor by moving lever in proper direction. If engine is warm or air tempera- ture is high, close choke valve half-way, or keep it open fully.

3.Machines with recoil start: Turn engine ON/OFF switch to the “ON” position. Pull the recoil starter grip lightly until resistance is felt, then pull briskly.

Machines without APR (Automatic Pressure Relief): If the engine fails to start after 1 or 2 pulls of the recoil, pressure will build-up in the system. To relieve the pressure squeeze the gunvalve trigger and allow water to flow freely. There should be NO nozzle or obstruction at the end of the extension.

4.After engine starts, open choke gradually.

5.Warm up engine for 3 minutes without load.

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